In 2007 Glen Helen hosted an open-invite professional race the weekend before the national season kicked off to give riders a chance to see where they ranked. So many pros showed up that it\'s hard to believe this is not an AMA national.http://www.racerxonline.com | http://www.racerxfilms.com Alessi, Glen, Grant, Helen, Langton, Metcalfe, Motocross, National, Supercross